Liquid Transfer Funnel
thingiverse
To create my own version of a unique funnel, I discovered a prototype at Publix using soft rubber. However, hard plastic could also work effectively. This innovative design includes internal fins for securing an upright bottle as a source, side grips to help remove the source bottle, an air escape channel for the sink bottle, and spout grips for stability of the sink bottle. Imagine the shampoo or hand soap savings with this efficient transfer device! Additionally, with minor modifications, it could be used as a vortex demonstrator with two 2-liter bottles. Yet, I haven't attempted printing it yet, as the depth of side grips may pose an issue.
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